240305115533081 has 2 divisors, whose sum is σ = 240305115533082. Its totient is φ = 240305115533080.

The previous prime is 240305115533059. The next prime is 240305115533129. The reversal of 240305115533081 is 180335511503042.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 239618635344400 + 686480188681 = 15479620^2 + 828541^2 .

It is a cyclic number.

It is not a de Polignac number, because 240305115533081 - 2⁶ = 240305115533017 is a prime.

It is a super-2 number, since 2×240305115533081² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (240305115533881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120152557766540 + 120152557766541.

It is an arithmetic number, because the mean of its divisors is an integer number (120152557766541).

Almost surely, 2^{240305115533081} is an apocalyptic number.

It is an amenable number.

240305115533081 is a deficient number, since it is larger than the sum of its proper divisors (1).

240305115533081 is an equidigital number, since it uses as much as digits as its factorization.

240305115533081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216000, while the sum is 41.

The spelling of 240305115533081 in words is "two hundred forty trillion, three hundred five billion, one hundred fifteen million, five hundred thirty-three thousand, eighty-one".